With detailed information in the midrange area and a soft silky response in the top end, the Cactus details and mellows the program material. The amplifier design is based on a single vacuum tube sub-miniature. Multipattern. 20Hz - 20kHz frequency range. Includes power supply, ATA flight case, series one shockmount/pop filter, and Kiwi cord. Includes power supply, ATA flight case, series one shockmount/pop filter, and Kiwi cord.